| Code | Name | Region |
|---|---|---|
| MXNHY | Nezahualcoyotl | MEX |
| MXNRO | Nicolas Romero | MEX |
| MXNOG | Nogales | SON |
| MXROO | Noh-bec | ROO |
| MXNNA | Nonoalco | HID |
| MXNOP | Nopala | HID |
| MXNPC | Nopalucan | PUE |
| MXNCG | Nueva Casas Grandes | |
| MXNIR | Nueva Italia De Ruiz | MIC |
| MXNUR | Nueva Rosita | COA |
| MXNLD | Nuevo Laredo | TAM |
| MXNLN | Nuevo Leon | CHP |
| MXNUO | Nuevo Urecho | MIC |
| MXNUM | Numaran | GUA |
| MXMSL | Misantla | VER |
| MXMXQ | Mixquiahuala | HID |
| MXMOL | Molango | HID |
| MXLOV | Monclova | COA |
| MXMTM | Montemorelos | NLE |
| MXTTE | Monterrey | CHP |
| MXMTY | Monterrey | NLE |
| MXMLM | Morelia | MIC |
| MXMRS | Moris | CHH |
| MXMOR | Moroleon | GUA |
| MXMRE | Morro Redondo | |
| MXMDF | Motul De Felipe Carrillo Puerto | YUC |
| MXMUG | Mulege | BCS |
| MXNAC | Nacajuca | TAB |
| MXNDG | Nacozari De Garcia | |
| MXNAN | Nanchital | |
| MXNAO | Naolinco | VER |
| MXNOL | Napoles | HID |
| MXNAL | Naucalpan | MEX |
| MXNDJ | Naucalpan De Juarez | MEX |
| MXMTE | Matehuala | SLP |
| MXMTR | Matias Romero | OAX |
| MXMAZ | Mazamitla | JAL |
| MXMZT | Mazatlan | SIN |
| MXMEM | Melchor Muzquiz | COA |
| MXMQI | Meoqui | CHH |
| MXMID | Merida | YUC |
| MXMPC | Metepec | MEX |
| MXMXL | Mexicali | BCN |
| MXMDC | Mexquitic De Carmona | SLP |
| MXMEZ | Mezquital | NLE |
| MXMTL | Miacatlan | MOR |
| MXMCN | Michacan | MIC |
| MXMIC | Michoacan | TAB |
| MXMGL | Miguel Aleman | SON |
| MXMHI | Miguel Hidalgo | MEX |